// company-profile
Magnite, Inc.
MGNI// activity-summary
Recent insider activity is bullish. Over the last 30 days, 8 insiders purchased shares. Buying was led by Knopper Douglas S.
// 90-day insight
Over the last 90 days, Magnite, Inc. insiders bought $0 (8 transactions) and sold $974K (8 transactions).
- Most active insider: BARRETT MICHAEL G. with 7 transactions totaling $6.5M.
- Largest single sale: $3.0M by BARRETT MICHAEL G. on Jun 15, 2026.
- 56% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity is mixed — buys and sales are roughly balanced.
Institutional Ownership
Top 13F-HR holders of Magnite, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 17, 2026 | Buonasera David | MGNI | Sale10b5 | 1,409 | $19.00 | $27K |
| Jun 17, 2026 | Buckley Sean Patrick | MGNI | Sale10b5 | 19,233 | $19.00 | $365K |
| Jun 16, 2026 | BARRETT MICHAEL G. | MGNI | Option Exercise10b5 | 100,000 | $5.80 | $580K |
| Jun 16, 2026 | Buonasera David | MGNI | Sale10b5 | 11,233 | $18.00 | $202K |
| Jun 16, 2026 | BARRETT MICHAEL G. | MGNI | Sale10b5 | 100,000 | $17.50 | $1.75M |
45 more transactions hidden
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